Add module() as a union type of callback() #52
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…rding to sockjs_session:emit/2.
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The type signature of the function isn't correct anyway: it should be {ok, any()}, not just ok :/. |
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According to to sockjs_session:emit/2, the callback can be a module name, which is how our code uses sockjs_handler:init_state/4. The definition of the callback() type as only a fun results in a number of dialyzer warnings, which are resolved by this change.